Preventing CO Poisoning Before You Go Boating
Before each boating trip, you should:
- Make sure you know where the exhaust outlets are located on your boat.
 - Educate all passengers about the symptoms of CO poisoning and where CO may accumulate.
 - Confirm that water flows from the exhaust outlet when the engines and generator are started.
 - Listen for any change in exhaust sound, which could indicate an exhaust component failure.
 - Test the operation of each CO detector by pressing the test button.
 
At least monthly, you should:
- Make sure all exhaust clamps are in place and secure.
 - Look for leaks from exhaust system components. Signs include rust and/or black streaking, water leaks, or corroded or cracked fittings.
 - Inspect rubber exhaust hoses for burns, cracks, or deterioration.
 
At least annually, have a qualified marine technician check the engine and exhaust system.